WÄRTSILÄ Vasa R22, Instruction Manual

Page: 213 / 297

18.3.3 Inspection
1 Check all parts for wear (chapter 06., section 06.2) and
replace worn parts.
2 Remove worn bearings from the housing by driving
them out with a suitable mandrel, from the cover by machin-
ing.
3 Mount new bearings (freezing is recommended) so that
the bearings are 3 mm below the cover and housing level. Be
careful so that the bearing lubrication grooves (5) slide into the
right position according to Fig 18-2.
4 Check the bearing diameter after mounting. Check the
gear wheel axial clearance (see chapter 06., section 06.2 pos.
18).
Lubricating oil pump
18.3.4 Assembling
1 Clean and oil all details carefully before assembling.
Check that the O-ring in the cover is intact and in correct
position.
2 Before re-installing the gear wheel, all contact surfaces
should be cleaned and oiled.
3 Pull the gear wheel (2) on to the shaft, by using the tool
837012, including the washer (3).
A
B
C
1. Screw
2. Gear
3. Washer
4. Screw
5. Lubrication grooves
6. Pin
8. Seal ring
9. Servo piston
10. Distributing pipe
11. Seal ring
12. Ball
14. Control piston
16. Spring
17. Screw
13. Draining bore
5
9
10
8
3
2
1
4
6
16
14
17
12
13
11
20. Conical ring elements
20
Fig 18-2
2218529509
18 Lubricating Oil System 22-9601
18-4 VASA 22